An ordinary life threaded with bits of more ordinariness. A life that will leave behind no marks. A life that blends into the background. A lonely life. Lonely by choice. A life that revels in its loneliness. The life of a nobody.
Inconsequential. Trifling. Trivial. Insignificant. Meaningless. Non-descript. Vapid. Pointless. Purportless. Purposeless.